Process of manufacturing a draft-yoke for railway-cars.



. 0. C. GROMWELL. PROCESS OF MANUFACTURING A DRAFT YOKE FOB RAILWAYCARS. APPLICATION FILED JUNE 7. 1913.

1,125,664. Patented Jan-19,1915.

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PROCESS OF MANUFACTURING A DRAFT YOKE FOR RAILWAY CARS.

APPLICATION FILED JUNE 7, 1913.

Patented Jan. 19, 1915.

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1s ATTOREK} O. G. CROMWELL. PROCESS OF MANUFACTURING A DRAFT YOKE FURRAILWAY CARS.

APPLICATION FILED JUNE 7, 1913.

Patented Jan. 19, 1915.

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OLIVER C. CROMWELL, 0F BALTIMORE, MARYLAND.

' rnocnss or MANUFACTURING. A. Interim-Yoga roR RAILWAY-cans.

To all whom it may concern.

Be it known that I, OLIVER G. CRoMWELL,

a citizen of the United States, residing at Baltimore, in the State ofMaryland, have invented a certain new and useful Improvement in aProcess of Manufacturing a Draft-Yoke for Railway-Cars,.of which thefollowing is a full, clear, concise, and exact description, referencebeing had to the accompanying drawings, forming a part of thisspecification.

My invention relates to a process of manufacturing a draft yoke forrailway cars.

The object of my invention is to provide a simple processofmanufacturing a draft yoke having a hollow box-like openlng to receivethe draw bar.

In the drawings forming a part of this specification Figure 1 is aperspective view of a billet of yoke material. Fig. 2 1s a perspectiveview of said material drawn'to a bar having an enlarged end. Fig. 3 1s aperspective view of said bar with :1 lug at one end. Fig. 4. is aperspective view with the enlarged end of the bar split. Fig. 5 is aperspective view showing said split ends outwardly turned. Fig. 6 is aperspective view showing the outwardly turned ends. each formed into a.plate. having forwardly projecting ears. Fig. 7 is a perspective viewshowing a slot in each of said plates. Fig. 8' is a perspective viewshowing the bar formed into a U shape. Fig. 9 is a perspec tive viewvshowing the outwardly turnedplates at oneend of the bar bent to meet jthe sides of the bar adjaeent its other end. Fig. 10 is a perspectiveview showing the ends of the said plates turned to engage the lug. F ig.11 is a perspective view showing the completed draft yoke. 7

Referring to the drawings the numeral 12 represents a billet of yokematerial, preferably rectangular in shape.

To manufacture a draft yoke having a.

hollow boislike opening to receive the draw "bar my process consists indrawing the ML Y let. 12 to a bar 13, preferably fiat, havmg acomparatively enlarged end 14, then transversely bending-the other endto form the lug 15. The enlarged end 14 of the bar Specification ofLetters Patent.

slot 20. The bar 13 is drawings.

thereof and then turning Patented Jan. 19, 1915.

Application filed June '7, 1913. Serial No. 772.217.

is then vertically split, as illustrated in Fig. 4 of the drawings,turned outwardly to form a T-head, as illustrated in Fig. 5 of'thedrawings. The T- head is then flattened into plates 17, 17, eachplate'preferably having a forwardly extending ear 18, 18. Each plate isthen provided intermediate the bar 13 and the free end 19 of the platewith a longitudinal then bent into a U- shape, forming a U-shaped yokestrap 21 with the lug 151 outwardly turned. The

are then bent to engage the sides of the yoke strap at its other end. asillustrated in Fig. 9 of the drawings. The free ends 19, 19 of theplates 17 are each inwardly turned to engage the other end of the yokestrap.

It will be apparent that the lug 15 mav be dispensed with, or that aplurality oflugs or difierent varieties of lugs may and employed. Iprefer, however, to em ploy the single lug 15 illustrated in the plates17 inwardly back of the lug 15. The final step in the process consistsin welding the plates at one free end of the vokestrap to its other end,forming the draft yoke illustrated in Fig. 11 of the drawings.comprising a yoke strap having a hollow boxlike. member at itsfree endsto receive a draw bar. and laterally slotted to receive a draw bar key.

I claim 1. The process of manufacturing a draft yoke, which consists insplitting one end of a bar of yoke material longitudinally thereof,turning the split ends thus formed outwardly to form a T-head.flattening said ends so that thesame extend substantially in the sameplane as the main portion of the bar, bending said bar intosubstantially U- shape, bending the free ends of said flattened T-headto engage the opposite end of the bent yoke strap. and finally weldingsaid ends together.

and the split ends 16, 16.

be formed and to turn the ends 19, 19 of they plates 17, 17 at one endof the yoke strap 2. The herein described process of manufacturing draftyokes, which consists in splitting one end of-a .ir longitudinally thesplit ends out;

wardly 'to form a T-head, flattening said other end of the original barto thereby formoutwardly bent ends so that they extend subahead at thefront end Of the yoke.

stantially in the same plane as the main 7 body of thebar, then bendingthe bar into ER CROMWELL' 5 U-shape in a plane substantially perpendicn-W1tnesses:

lar to theplane of the flattened split ends, CLEVELAND R. BEALMEAR,

\ and finally nniting the flat split ends to the 1 THos. D. GOLDBERG. I

